Sorted out some methods at ItemPool which process
Defaults to make more clear what is going on and
what which method is doing.
Change-Id: I2568d3e03d0a56a14b6fe4e04521e1a8e22c000b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162643
Tested-by: Jenkins
Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>